first i dont trust anti-virus because if a hacker really wanted to he could obtain a unpacked server and trim it then pack it making it undetectible. Another thing you would want to do is check for the places trojans will startup here is a link where yo can find aout start methods - http://www.tlsecurity.net/auto.html - (by the way trojans dont always show up in ctrl+alt+del they can hide in theads now!) - Another KEY THING TO DO IS GET A FIREWALL!!!!!!!!!!!!! I would recommend zonealarm for beginers. Good Luck